The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 22, 2020
Filed:
Oct. 07, 2019
Eaton Intelligent Power Limited, Dublin, IE;
Swapnil Sabde, Thane West, IN;
Gayatri Vinod Pandit, Pune, IN;
Vinay M. Patil, Pune, IN;
Saivaraprasad Murahari, Peachtree City, GA (US);
Hoon Lee, Sugar Hill, GA (US);
Eaton Intelligent Power Limited, Dublin 4, IE;
Abstract
Systems and methods are provided for measuring input voltage in an alternating current (AC) system is provided. The method includes measuring a half-cycle time of an AC signal by: detecting, using a zero crossing detector (ZCD), a first edge of the AC signal; in response to detecting the first edge, using a timer to determine a start time; detecting, using the microcontroller, a subsequent edge of the square wave output of ZCD signal; and, in response to detecting the subsequent edge, using the timer to determine a stop time and a length of time that lapsed from the start and stop times. The method further includes determining an overall value that corresponds to at least one length of time, determining, based on the overall value, an input voltage range that corresponds to the overall value, and using the input voltage to cause the AC system to take an action.